Antifungal Activity of Microgramma vacciniifolia Rhizome Lectin on Genetically Distinct Fusarium oxysporum f. sp lycopersici Races

作者：de Albuquerque Lidiane Pereira; Santana Giselly Maria de Sa; Napoleao Thiago Henrique; Breitenbach Barroso Coelho Luana Cassandra; da Silva Mrcia Vanusa; Guedes Paiva Patricia Maria

来源：Applied Biochemistry and Biotechnology, 2014, 172(2): 1098-1105.

DOI：10.1007/s12010-013-0600-9

• Microgramma vacciniifolia
• Rhizome lectin
• Antifungal activity
• Fusarium oxysporum f. sp lycopersici
• ISSR

Fusarium oxysporum f. sp. lycopersici races 1, 2, and 3 deteriorate tomato crops since they cause a vascular wilt. Lectins are carbohydrate-binding proteins with hemagglutinating and antifungal activities. This work reports that Microgramma vacciniifolia rhizome lectin (MvRL) inhibits F. oxysporum f. sp. lycopersici race 3 growth (61 %) more intensely than of races 1 (55 %) and 2 (45 %). The hemagglutinating activity of MvRL was inhibited by glycoprotein preparations from mycelia of races 1, 2, and 3, and these data indicate that lectin carbohydrate-binding sites recognized glycosylated molecules from races. Inter-simple sequence repeat (ISSR) marker system showed that race 3 is genetically distinct from races 1 and 2, and thus the highest sensitiveness of F. oxysporum f. sp. lycopersici race 3 to MvRL may be due to molecular characteristics of this race.

• 出版日期2014-1